CN1363035A - Compression tester - Google Patents
Compression tester Download PDFInfo
- Publication number
- CN1363035A CN1363035A CN01800327.3A CN01800327A CN1363035A CN 1363035 A CN1363035 A CN 1363035A CN 01800327 A CN01800327 A CN 01800327A CN 1363035 A CN1363035 A CN 1363035A
- Authority
- CN
- China
- Prior art keywords
- pressure
- sample
- compression tester
- elastic plate
- check
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000006835 compression Effects 0.000 title claims abstract description 53
- 238000007906 compression Methods 0.000 title claims abstract description 53
- 239000000919 ceramic Substances 0.000 claims abstract description 32
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 31
- 239000012530 fluid Substances 0.000 claims description 5
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 3
- 229920002635 polyurethane Polymers 0.000 description 18
- 239000004814 polyurethane Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 11
- 229920006311 Urethane elastomer Polymers 0.000 description 6
- 239000012634 fragment Substances 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical class C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0256—Triaxial, i.e. the forces being applied along three normal axes of the specimen
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/388—Ceramics
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A compression tester for ceramic test specimen, wherein a hydrostatic pressure applying medium is filled between a cylindrical container (8) and an elastic body sheet (9) for pressurization with a ceramic test specimen (1) installed through the elastic body sheet (9) in the cylindrical container (8), and a rubber material of 5 mm or less in thickness and 30 to 50 DEG in hardness is used as the elastic body sheet (9), whereby, because the elastic body sheet is thinned and the hardness is set to a specified value so as to almost eliminate a pressure attenuation, the specimen can be pressurized with a high accuracy even if the pressure is lower.
Description
Technical field
The present invention relates to a kind of compression tester that is used for ceramics sample, relate in particular to a kind of compression tester that is used for ceramics sample that when reducing to low pressure, can carry out high precision inspection.
Background technology
Ceramic component is implemented by apply hydrostatic pressure on ceramic component such as the compression check that honeycomb structure carries out.Fig. 2 is the skeleton view of the common compression method of inspection, its configuration is that sample 1 is positioned at urethane rubber right cylinder 2, this right cylinder has the internal diameter corresponding with the diameter of sample 1, and has 0.5 to 1.0mm thickness, and be provided with the discoid acrylic panel 3 that leans against on this sample 1 in the end of sample 1, this acrylic panel 3 is fixed on the urethane rubber right cylinder 2 by elastic webbing 4, and put into the water of storage tank 5 by the sample 1 that urethane rubber right cylinder 2 and acrylic panel 3 are covered, pressure is affacted on the sample 1.
Yet the problem that has been found that in the above-mentioned common compression method of inspection is that work efficiency descends when the many samples of check, is very consuming time because with elastic webbing 4 acrylic panel 3 is fixed on the urethane rubber right cylinder 2.Another problem be when since pressure and the broken wet fragment of sample when adhering to the urethane rubber right cylinder, be difficult to after check, clean this verifying attachment.
In order to overcome these problems, among the Japanese Patent Application No.10-197429 a kind of compression tester is disclosed for example, wherein this checking machine is provided with hydrostatic column, polyurethane sleeve and polyurethane sheet.Utilize following the carrying out of checkout procedure of this compression tester 6.With reference to Fig. 3, the sample 1 that is provided with polyurethane sleeve 7 is on every side put into hydrostatic column 8, polyurethane sheet 9 is between this polyurethane sleeve 7 and hydrostatic column 8.Then, will apply the medium of hydrostatic pressure inject between hydrostatic column 8 and the polyurethane sheet 9, thereby around sample compression sample 1, compress check by this.
In this compression tester, sample 1 is fixed without elastic webbing.Therefore, even work efficiency does not reduce yet when handling many samples.And after check, the dry crushing sheet of sample 1 is trapped in the polyurethane sleeve 7.Therefore, the cleaning of this checking machine is than easier when using urethane rubber right cylinder shown in Figure 2.
Yet the problem in this compression tester 6 shown in Figure 3 is to be difficult to control the pressure that is applied on the sample 1, because apply pressure on the medium owing to the elasticity of polyurethane sleeve 7 causes the incomplete correspondence of compression of sample 1 to be applied to pressure.
In addition, in recent years, the wall of honeycomb structure thins down, and the pressure of check also is lower than 1Mpa.Yet in compression tester shown in Figure 36, the problem of existence is that the elasticity owing to polyurethane sleeve 7 is difficult to low-pressure is applied on this sample 1.Just, when the pressure on wishing sample 1 is lower than the pressure of 1Mpa, is applied to pressure and applies pressure on the medium and only be used for compressing polyurethane sleeve 7 and make its distortion, and do not have compression sample 1.
And in compression tester shown in Figure 36, the preparation of check is required great effort very much, wherein each sample must be inserted in the polyurethane sleeve 7, puts into hydrostatic column 8 then.
The present invention makes just in light of this situation, the purpose of this invention is to provide a kind of compression tester, wherein can apply low-pressure, and can easily carry out high-precision check.
Summary of the invention
According to the present invention, a kind of compression tester that is used to check ceramics sample is provided, wherein ceramics sample is in elastic plate is arranged at hydrostatic column, and, wherein be applied to this elastic plate with having elastomeric material 5mm or littler thickness and hardness 30-50 ° by the medium compressed ceramic sample that applies hydrostatic pressure that between this hydrostatic column and elastic plate, injects.
Preferably, even when by the medium applied pressure that applies hydrostatic pressure during, above-mentionedly be used to check the compression tester of ceramics sample also can use less than 1Mpa.Preferable is that the thickness of this elastic plate is 0.3-5mm, especially preferably 0.5-2.0mm.Preferable is that this elastic plate has 35-45 ° hardness.
And preferably compressible fluid such as air are as applying the medium of hydrostatic pressure, because be easy to handle and have bigger filling capacity when elastic plate breaks.Preferably at this compression tester that is used for checking ceramics sample, pressure is elevated to 0.5Mpa at 0.5-10 in second.This pressing speed can break detection signal so that the time-out pressurization prevents breaking of elastic plate by feedback.At the compression tester that is used for detecting ceramics sample of the present invention, this ceramics sample can be a honeycomb structure.
Description of drawings
Fig. 1 is the schematic cross sectional view of compression tester according to an embodiment of the invention;
Fig. 2 is a kind of skeleton view of known compression tester;
Fig. 3 is the schematic cross sectional view of another kind of known compression tester; And
Fig. 4 is the schematic cross sectional view according to compression tester of the present invention, wherein utilizes this checking machine to test.
Embodiment
With reference to the embodiment shown in the accompanying drawing the present invention is described in more detail.
In compression tester according to an embodiment of the invention, ceramics sample is put into hydrostatic column through elastic plate, and injects the medium that applies hydrostatic pressure so that check is compressed in pressurization by this on ceramics sample between this hydrostatic column and elastic plate.As shown in Figure 1, sample 1 is positioned at inspecting containers 15, and wherein elastic plate 9 is arranged on the inwall.Just because this hydrostatic column 8 and elastic plate 9 integrally form inspecting containers 15, and when exerting pressure elastic plate 91 shape and attached on the sample 1, so do not need to use the conventional polyurethanes sleeve 7 that has corresponding to shape of product per sample.So, can prepare than simpler mode in the common compression tester shown in Figure 3 with a kind of.In compression tester according to the embodiment of the invention, by detecting the rising that suspends pressure from the sound that breaks that is subjected to sample product, so, can easily clean the sample fragment, and prevent to cause elastic plate itself to break owing to pressure by the sample fragment.
In compression tester of the present invention, only elastic plate 9 applies between the medium A at sample 1 and pressure, and pressure descends very for a short time with respect to pressurization, therefore, can optionally operate pressure process.Just, after just beginning pressurization because the elasticity (shrinkability) of elastic plate 9 and elastic plate 9 is attached on the sample 1, so and controlled pressure can be applied directly on the sample 1.In addition, because institute's applied pressure is subjected to direct control, thus can avoid causing the problem of sample burst owing to the pressure that is higher than predetermined pressure, and owing to be lower than the problem that the pressure of predetermined pressure causes defective goods to send.
In compression tester of the present invention, the elastomeric material that uses the hardness with 5mm or littler thickness and 30-50 ° is as applied the elastic plate of medium to the sample pressurization by pressure.
Therefore, because the elastomeric material that uses the hardness with 5mm or littler thickness and 30-50 ° in the present invention is as elastic plate, so when applying medium by pressure and pressurize, almost do not have pressure to descend, and this elastic plate can be per sample 1 shape and being attached on the ceramics sample 1.So controlled pressure can be applied directly on the sample.
Preferable is that the thickness of this elastic plate is 0.3-5mm, especially preferably 0.5-2.0mm; And in view of its shrinkability and durability, preferable is that this elastic plate has 35-45 ° hardness.Incidentally, the hardness of elastic plate is measured on the hardness test basis of " physical test method of vulcanized rubber (Method of physical test of rulcanizedrubber) " shown in the JIS K6301.
As for the material of this elastic plate, can use various elastomeric materials, such as polyurethane, silicone, natural rubber and synthetic rubber.Among them,, can preferably use natural rubber in view of the anti-intensity and the low cost of cutting or breaking.
In addition, apply medium as the pressure in compression tester of the present invention, incompressible fluid can use such as water and compressible fluid ratio such as air.Yet, because pressure process is to carry out under low-pressure in the present invention, owing to when elastic plate breaks, be easy to handle and bigger filling capacity, so preferably use air.
Because in compression tester of the present invention as mentioned above with respect to pressurization pressure descend very little, so though pressure process can be carried out in a step, pressure process also can be carried out in the multistep that is made of two or more steps is rapid.
Preferably, compression tester according to the present invention by survey from the sound that breaks of ceramics sample determine sample begin break, pressurize thereby suspend.The sound that breaks when beginning to break by acoustic emission (AE) sensor ceramics sample, perhaps by detecting since ceramics sample break and cause pressure in the hydrostatic column to change to suspend pressurization when (hydrostatic pressure change) detects sample and begin to break, prevented to make sample unnecessarily to break, thereby excessively breaking of sample can not taken place, be more prone to and make to clean.
Incidentally, in compression tester according to the present invention, in second pressure is elevated to the pressure of 0.5Mpa at 0.5-10 by the control pressing speed, feed back the detection signal that breaks, so that suspend pressurization, even thereby under the situation of using compressible fluid such as air, can avoid elastic plate owing to the contact fragment breaks.
The number of the inspecting containers that is provided with in compression tester according to the present invention is hard-core.Yet under the situation that is provided with two inspecting containers, sample is put into two inspecting containers, the check of pressurizeing simultaneously; The sample that can prepare to put into subsequently in pressure process, the operator can be in its fixed position efficient operation like this.
Preferably, compression tester according to the present invention is used for the compression check of ceramics sample, in particular for the compression check of ceramic honeycomb member.
With reference to example the present invention is described hereinafter.Yet the present invention never is limited to these examples.
(example 1)
As shown in Figure 1, use comprises hydrostatic column 8, carries out the compression check of ceramic honeycomb member as the polyurethane sheet 9 of elastic plate and the compression tester 6 of inspecting containers 15.
It is the polyurethane sheet 9 of 1mm that the hydrostatic column 8 that is fabricated from iron is provided with at the thickness of hydrostatic column 8 inside.Each end at the both ends of polyurethane sheet 9 is placed between a tapering part 20 and the fabricated section 22, and this tapering part is arranged in the both ends of hydrostatic column 8 and this fabricated section is provided with the tapering part 21 with shape and tapering part 20 corresponding tapering parts 22.Hydrostatic column 8 is fixed on the fabricated section 22 to keep impermeability by bolt 12.Incidentally, fabricated section 22 has the structure that is connected with flange 13, and hydrostatic column 8 is provided with the pressure entrance 16 that can be connected with the pressure hose of compression unit (not shown).
When check, inspecting containers 15 is fixed on the pedestal 17, as shown in Figure 4.Shoring 11 moves to the upper position of hydrostatic column 15, and honeycomb structure 1 is installed on the shoring 11, and shoring 11 is moved down into the lower position of inspecting containers 15, and honeycomb structure 1 just has been placed in the inspecting containers 15 like this.To keep cylinder 10 to be located on the honeycomb structure 1, shoring 11 and maintenance cylinder 10 are clamped honeycomb structure 1 with the power of about 1Mpa, and honeycomb structure 1 is not moved with the pressure that is applied thereto.
Then, the compression unit (not shown) begins pressurization by the pressure entrance 16 that is connected in pressure hose.At first, in 2 seconds, be pressurized to 0.7Mpa.Soon, polyurethane sheet 9 is attached to the periphery of honeycomb structure 1 after pressurization.Pressure is applied on the whole periphery of honeycomb structure 1 equably through polyurethane sheet 9.Situation when Fig. 4 shows compression tester 6 and tests.In checkout procedure, when pressure was elevated to 0.5Mpa, honeycomb structure 1 broke, and therefore suspended pressurization, reduced pressure then.Break by pressure variation (pressure decline) detection that detects in the inspecting containers 15.
Industrial applicability
According to compression tester of the present invention, be located at pressure and apply between medium and the tested sample Elastic plate make thinlyyer, and have predetermined hardness, and almost completely avoided under the pressure Fall, therefore, even under low-pressure, also can pressurize accurately. In addition, because In the case controlled pressure can directly apply, so be easy to regulate pressure.
And, if in compression tester of the present invention, by the pressure in the Check and Inspection container Power changes, or by the sound that breaks that detects ceramics sample detect sample begin break, Thereby time-out pressure process can make so breaking of sample be reduced to bottom line, and prevent Itself breaks elastic plate, and the easier cleaning of the fragment of sample.
Claims (6)
1. compression tester that is used to check ceramics sample, wherein ceramics sample is in elastic plate is located at hydrostatic column, and described ceramics sample is by the medium compression that applies hydrostatic pressure of injecting between described hydrostatic column and the elastic plate, and wherein the elastomeric material with the hardness with 5mm or littler thickness and 30-50 ° is made into described elastic plate.
2. the compression tester that is used to check ceramics sample according to claim 1 is characterized in that, by the medium applied pressure that applies hydrostatic pressure less than 1MPa.
3. the compression tester that is used to check ceramics sample according to claim 1 and 2 is characterized in that, the thickness of described elastic plate is 0.3-5mm.
4. according to each described compression tester that is used to check ceramics sample among the claim 1-3, it is characterized in that compressible fluid such as air are as the medium that applies hydrostatic pressure.
5. according to each described compression tester that is used to check ceramics sample among the claim 1-4, it is characterized in that described pressure is elevated to 0.5MPa at 0.5-10 in second.
6. according to each described compression tester that is used to check ceramics sample among the claim 1-5, it is characterized in that described ceramics sample is a kind of honeycomb structure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49428/00 | 2000-02-25 | ||
| JP2000049428A JP2001242054A (en) | 2000-02-25 | 2000-02-25 | Compression tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1363035A true CN1363035A (en) | 2002-08-07 |
Family
ID=18571378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01800327.3A Pending CN1363035A (en) | 2000-02-25 | 2001-02-15 | Compression tester |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20020157454A1 (en) |
| EP (1) | EP1189051A4 (en) |
| JP (1) | JP2001242054A (en) |
| CN (1) | CN1363035A (en) |
| AU (1) | AU3229601A (en) |
| WO (1) | WO2001063242A1 (en) |
| ZA (1) | ZA200108327B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435756B (en) * | 2008-12-25 | 2011-07-20 | 陕西科技大学 | Device and method for detecting external pressure of heat exchange tube |
| CN102884411A (en) * | 2010-04-06 | 2013-01-16 | 瓦瑞尔欧洲联合股份公司 | Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard materials |
| US9086348B2 (en) | 2010-04-06 | 2015-07-21 | Varel Europe S.A.S. | Downhole acoustic emission formation sampling |
| US9249059B2 (en) | 2012-04-05 | 2016-02-02 | Varel International Ind., L.P. | High temperature high heating rate treatment of PDC cutters |
| CN106813985A (en) * | 2015-11-27 | 2017-06-09 | 日本碍子株式会社 | Isostatic pressed breakdown strength testing machine and isostatic pressed breakdown strength test method |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6729190B1 (en) | 2002-10-28 | 2004-05-04 | Corning Incorporated | Ceramic honeycomb strength testing apparatus |
| DE102006023110B4 (en) * | 2006-05-16 | 2011-03-10 | Corenso United Oy Ltd. | Method and device for testing tubular objects |
| US7552648B2 (en) | 2007-09-28 | 2009-06-30 | Halliburton Energy Services, Inc. | Measuring mechanical properties |
| JP4944048B2 (en) * | 2008-01-30 | 2012-05-30 | 日本碍子株式会社 | Method for measuring strength of honeycomb structure having insertion hole |
| FR2934899B1 (en) * | 2008-08-08 | 2010-09-17 | Commissariat Energie Atomique | TEST MACHINE FOR APPLYING UNIFORM INTERNAL PRESSURE TO A TUBE |
| US8783091B2 (en) | 2009-10-28 | 2014-07-22 | Halliburton Energy Services, Inc. | Cement testing |
| KR101113784B1 (en) * | 2009-11-02 | 2012-02-27 | 한국표준과학연구원 | Pressure-Resistant Test Device and Pressure-Resistant Test Method of Metallic Container |
| US8397572B2 (en) | 2010-04-06 | 2013-03-19 | Varel Europe S.A.S. | Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard materials |
| US8596124B2 (en) | 2010-04-06 | 2013-12-03 | Varel International Ind., L.P. | Acoustic emission toughness testing having smaller noise ratio |
| US8322217B2 (en) | 2010-04-06 | 2012-12-04 | Varel Europe S.A.S. | Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard material inserts |
| US9297731B2 (en) | 2010-04-06 | 2016-03-29 | Varel Europe S.A.S | Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard material inserts |
| US8960013B2 (en) | 2012-03-01 | 2015-02-24 | Halliburton Energy Services, Inc. | Cement testing |
| US8794078B2 (en) | 2012-07-05 | 2014-08-05 | Halliburton Energy Services, Inc. | Cement testing |
| US9234824B1 (en) * | 2013-03-14 | 2016-01-12 | Troxler Electronic Laboratories, Inc. | Gyratory compactor apparatuses and associated methods |
| WO2020236478A1 (en) * | 2019-05-20 | 2020-11-26 | Corning Incorporated | Apparatus and method for evaluating radial compressive strength of a ceramic honeycomb sample |
| CN110514513A (en) * | 2019-08-09 | 2019-11-29 | 中国石油天然气集团有限公司 | One kind is for resistant to bending mold and application method in plate-shape metal compression experiment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS458944Y1 (en) * | 1967-04-26 | 1970-04-25 | ||
| US3906782A (en) * | 1974-02-04 | 1975-09-23 | Engelhard Min & Chem | Isostatic crush strength test system |
| JPS5914048U (en) * | 1982-07-20 | 1984-01-27 | 三井造船株式会社 | Triaxial compression test equipment |
| JPS60129641A (en) * | 1983-12-19 | 1985-07-10 | Agency Of Ind Science & Technol | Tensile and compression test of anisotropic material |
| US5339693A (en) * | 1992-12-28 | 1994-08-23 | Sonoco Products Company | Apparatus and method for testing tubular products |
| JPH0755487Y2 (en) * | 1993-03-15 | 1995-12-20 | 日本碍子株式会社 | Compression tester |
| JPH10197429A (en) * | 1997-01-10 | 1998-07-31 | Ngk Insulators Ltd | Compression tester |
| JP3352980B2 (en) * | 1999-07-28 | 2002-12-03 | 日本碍子株式会社 | Compression testing machine |
-
2000
- 2000-02-25 JP JP2000049428A patent/JP2001242054A/en active Pending
-
2001
- 2001-02-15 WO PCT/JP2001/001061 patent/WO2001063242A1/en not_active Application Discontinuation
- 2001-02-15 US US09/959,383 patent/US20020157454A1/en not_active Abandoned
- 2001-02-15 EP EP01904456A patent/EP1189051A4/en not_active Withdrawn
- 2001-02-15 CN CN01800327.3A patent/CN1363035A/en active Pending
- 2001-02-15 AU AU32296/01A patent/AU3229601A/en not_active Abandoned
- 2001-10-10 ZA ZA200108327A patent/ZA200108327B/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435756B (en) * | 2008-12-25 | 2011-07-20 | 陕西科技大学 | Device and method for detecting external pressure of heat exchange tube |
| CN102884411A (en) * | 2010-04-06 | 2013-01-16 | 瓦瑞尔欧洲联合股份公司 | Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard materials |
| US9086348B2 (en) | 2010-04-06 | 2015-07-21 | Varel Europe S.A.S. | Downhole acoustic emission formation sampling |
| CN102884411B (en) * | 2010-04-06 | 2015-08-05 | 瓦瑞尔欧洲联合股份公司 | For the acoustic emission toughness test of PDC, PCBN or other hard materials or superhard material |
| US9249059B2 (en) | 2012-04-05 | 2016-02-02 | Varel International Ind., L.P. | High temperature high heating rate treatment of PDC cutters |
| CN106813985A (en) * | 2015-11-27 | 2017-06-09 | 日本碍子株式会社 | Isostatic pressed breakdown strength testing machine and isostatic pressed breakdown strength test method |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200108327B (en) | 2002-10-10 |
| EP1189051A4 (en) | 2002-10-30 |
| EP1189051A1 (en) | 2002-03-20 |
| AU3229601A (en) | 2001-09-03 |
| JP2001242054A (en) | 2001-09-07 |
| WO2001063242A1 (en) | 2001-08-30 |
| US20020157454A1 (en) | 2002-10-31 |
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